A leisurely Mexican holiday takes a turn for the worse when a group of friends and a fellow tourist embark on a remote archaeological dig in the jungle, where something evil lives among the ruins.
The humanity is suffering from murders all over the globe, called "Mincemeat murders". High school student, Izumi Shinichi has a parasite living off him, having replaced his right hand, and he might be the discoverer of truth.
Humanity is under attack by human-mimicking flesh-eating alien parasites. One parasite bonds with his young high school student host, and he convinces the parasite to help him stop the others.
Following the outbreak of a virus that wipes out the majority of the human population, a young woman documents her family's new life in quarantine and tries to protect her infected sister.